public object Convert(object value, System.Type targetType, object parameter, string language)
{
var imgUrl = value as string;
if (!string.IsNullOrEmpty(imgUrl))
{
if (Images.ContainsKey(imgUrl))
{
return(Images[imgUrl]);
}
var bitmap = new BitmapImage();
var ms = new InMemoryRandomAccessStream();
Factory.ImageCache.GetImage(imgUrl, async imgStream =>
{
var mssw = ms.AsStreamForWrite();
await imgStream.CopyToAsync(mssw);
await mssw.FlushAsync();
ms.Seek(0);
bitmap.SetSource(ms);
});
return(bitmap);
}
return(value);
}
/// <summary>
/// Loads the contents of this <see cref="ITextDocument"/> from the specified <see cref="DrxDocument"/>.
/// </summary>
public static void LoadFromDrx(this ITextDocument rtf, DrxDocument document)
{
if (document.Header.BodyType != DrxBodyType.Rtf)
{
throw new Exception("Document is of an unsupported encoding.");
}
var bytes = document.GetPlainTextBodyAsType(DrxBodyType.Rtf);
if (bytes.Length <= 0)
{
// Remember to clear the document,
// as we don't want leftover state for new ones
rtf.SetText(TextSetOptions.None, string.Empty);
return;
}
using (var stream = new InMemoryRandomAccessStream())
{
var writeStream = stream.AsStreamForWrite();
writeStream.Write(bytes, 0, bytes.Length);
writeStream.Position = 0;
stream.Seek(0);
rtf.LoadFromStream(TextSetOptions.FormatRtf, stream);
}
}
private static async Task LoadDisplayLogoAsync(ZipArchive archive, Theme theme)
{
// try and find it in the archive
var strings = ResourceLoader.GetForViewIndependentUse("ThemesSettingsPage");
var entry = archive.GetEntry(theme.DisplayLogo);
if (entry == null)
{
Analytics.TrackEvent("ThemeInstallFailure", new Dictionary <string, string>()
{
["Info"] = "InvalidLogo"
});
throw new InvalidOperationException(strings.GetString("ThemeInvalidNoLogo"));
}
// then load it into an image source
using (var stream = new InMemoryRandomAccessStream())
{
var image = new BitmapImage();
using (var entryStream = entry.Open())
{
var destination = stream.AsStreamForWrite();
await entryStream.CopyToAsync(destination);
await destination.FlushAsync();
}
stream.Seek(0);
await image.SetSourceAsync(stream);
theme.DisplayLogoSource = image;
}
}
public async Task <IBitmap> Load(Stream sourceStream, float?desiredWidth, float?desiredHeight)
{
return(await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(async() => {
using (var rwStream = new InMemoryRandomAccessStream()) {
var writer = rwStream.AsStreamForWrite();
await sourceStream.CopyToAsync(writer);
await writer.FlushAsync();
rwStream.Seek(0);
var decoder = await BitmapDecoder.CreateAsync(rwStream);
var transform = new BitmapTransform
{
ScaledWidth = (uint)(desiredWidth ?? decoder.OrientedPixelWidth),
ScaledHeight = (uint)(desiredHeight ?? decoder.OrientedPixelHeight),
InterpolationMode = BitmapInterpolationMode.Fant
};
var pixelData = await decoder.GetPixelDataAsync(decoder.BitmapPixelFormat, BitmapAlphaMode.Premultiplied, transform, ExifOrientationMode.RespectExifOrientation, ColorManagementMode.ColorManageToSRgb);
var pixels = pixelData.DetachPixelData();
var bmp = new WriteableBitmap((int)transform.ScaledWidth, (int)transform.ScaledHeight);
using (var bmpStream = bmp.PixelBuffer.AsStream()) {
bmpStream.Seek(0, SeekOrigin.Begin);
bmpStream.Write(pixels, 0, (int)bmpStream.Length);
return (IBitmap) new WriteableBitmapImageBitmap(bmp);
}
}
}));
}
private InMemoryRandomAccessStream RunStream(string path_url)
{
HttpWebRequest lxRequest = (HttpWebRequest)WebRequest.Create(
rem_main_URL + path_url);
if (ClanREST.user_token != null)
{
lxRequest.Headers["Authorization"] = "Bearer_" + ClanREST.user_token;
}
String lsResponse = string.Empty;
using (HttpWebResponse lxResponse = (HttpWebResponse)lxRequest.GetResponse())
{
using (BinaryReader reader = new BinaryReader(lxResponse.GetResponseStream()))
{
Byte[] lnByte = reader.ReadBytes(0);
MemoryStream lxMS = new MemoryStream();
Byte[] lnBuffer = reader.ReadBytes(1024);
while (lnBuffer.Length > 0)
{
lxMS.Write(lnBuffer, 0, lnBuffer.Length);
lnBuffer = reader.ReadBytes(1024);
}
InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream();
stream.AsStreamForWrite().Write(lxMS.ToArray(), 0, lxMS.ToArray().Length);
stream.Seek(0);
return(stream);
}
}
}
/// <summary>
/// Convert WriteableBitmap to byte
/// </summary>
/// <param name="writeableBitmap"></param>
/// <returns></returns>
public async static Task <byte[]> GetPhotoBytesAsync(this WriteableBitmap writeableBitmap)
{
if (writeableBitmap == null)
{
return new byte[0] {
}
}
;
Stream stream = writeableBitmap.PixelBuffer.AsStream();
byte[] pixels = new byte[stream.Length];
await stream.ReadAsync(pixels, 0, pixels.Length);
ConvertToRGBA(writeableBitmap.PixelHeight, writeableBitmap.PixelWidth, pixels);
InMemoryRandomAccessStream ims = new InMemoryRandomAccessStream();
var imsWriter = ims.AsStreamForWrite();
await Task.Factory.StartNew(() => stream.CopyTo(imsWriter));
stream.Flush();
stream.Dispose();
BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, ims);
encoder.SetPixelData(BitmapPixelFormat.Rgba8, BitmapAlphaMode.Premultiplied, (uint)writeableBitmap.PixelWidth, (uint)writeableBitmap.PixelHeight, 96, 96, pixels);
await encoder.FlushAsync();
stream = ims.AsStreamForRead();
byte[] pixeBuffer = new byte[ims.Size];
await stream.ReadAsync(pixeBuffer, 0, pixeBuffer.Length);
stream.Flush();
stream.Dispose();
return(pixeBuffer);
}
public async void DoChange()
{
UnsplashImageProvider unsplahsImage = new UnsplashImageProvider(wallpaperMonsterConfiguration);
WebResponse webResponse = unsplahsImage.LoadWebResponse(dimensions);
InMemoryRandomAccessStream randomAccessStream = new InMemoryRandomAccessStream();
using (Stream stream = unsplahsImage.FindRandomImageStream(webResponse))
{
Stream memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
memoryStream.Position = 0;
await memoryStream.CopyToAsync(randomAccessStream.AsStreamForWrite());
memoryStream.Position = 0;
if (wallpaperMonsterConfiguration.FindShouldChangeWallpaper())
{
ChangeWallpaper(unsplahsImage, memoryStream);
}
}
if (wallpaperMonsterConfiguration.FindShouldChangeLockScreen())
{
ChangeLockScreen(randomAccessStream);
}
}
public IImage Downsize(float maxWidthOrHeight, bool disposeOriginal = false)
{
if (Width > maxWidthOrHeight || Height > maxWidthOrHeight)
{
using (var memoryStream = new InMemoryRandomAccessStream())
{
Save(memoryStream.AsStreamForWrite());
memoryStream.Seek(0);
// ReSharper disable once AccessToDisposedClosure
var newBitmap = AsyncPump.Run(async() => await CanvasBitmap.LoadAsync(_creator, memoryStream, 96));
using (var memoryStream2 = new InMemoryRandomAccessStream())
{
// ReSharper disable once AccessToDisposedClosure
AsyncPump.Run(async() => await newBitmap.SaveAsync(memoryStream2, CanvasBitmapFileFormat.Png));
memoryStream2.Seek(0);
var newImage = W2DGraphicsService.Instance.LoadImageFromStream(memoryStream2.AsStreamForRead());
if (disposeOriginal)
{
_bitmap.Dispose();
}
return(newImage);
}
}
}
return(this);
}
public object Convert(object value, Type targetType, object parameter, string language)
{
if (value == null)
{
return(null);
}
if (value.GetType() != typeof(string) && targetType != typeof(BitmapImage))
{
throw new InvalidCastException();
}
if (String.IsNullOrWhiteSpace((string)value))
{
return(null);
}
else
{
byte[] bytes = System.Convert.FromBase64String((string)value);
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
ms.AsStreamForWrite().Write(bytes, 0, bytes.Length);
ms.Seek(0);
BitmapImage image = new BitmapImage();
image.SetSource(ms);
return(image);
}
}
}
private static async Task LoadDisplayLogo(ZipArchive archive, Theme theme)
{
// try and find it in the archive
var entry = archive.GetEntry(theme.DisplayLogo);
if (entry == null)
{
throw new InvalidOperationException("This theme specifies a logo file that doesn't exist!");
}
// then load it into an image source
using (var stream = new InMemoryRandomAccessStream())
{
var image = new BitmapImage();
using (var entryStream = entry.Open())
{
var destination = stream.AsStreamForWrite();
await entryStream.CopyToAsync(destination);
await destination.FlushAsync();
}
stream.Seek(0);
await image.SetSourceAsync(stream);
theme.DisplayLogoSource = image;
}
}
public byte[] DrawStrokeOnImageBackground(IReadOnlyList <InkStroke> strokes, byte[] backgroundImageBuffer)
{
var stmbuffer = new InMemoryRandomAccessStream();
stmbuffer.AsStreamForWrite().AsOutputStream().WriteAsync(backgroundImageBuffer.AsBuffer()).AsTask().Wait();
CanvasDevice device = CanvasDevice.GetSharedDevice();
var canbit = CanvasBitmap.LoadAsync(device, stmbuffer, 96).AsTask().Result;
CanvasRenderTarget renderTarget = new CanvasRenderTarget(device, canbit.SizeInPixels.Width, canbit.SizeInPixels.Height, 96);
using (var ds = renderTarget.CreateDrawingSession())
{
ds.Clear(Colors.Transparent);
if (backgroundImageBuffer != null)
{
ds.DrawImage(canbit);
}
ds.DrawInk(strokes);
}
var stm = new InMemoryRandomAccessStream();
renderTarget.SaveAsync(stm, CanvasBitmapFileFormat.Png).AsTask().Wait();
var readfrom = stm.GetInputStreamAt(0).AsStreamForRead();
var ms = new MemoryStream();
readfrom.CopyTo(ms);
var outputBuffer = ms.ToArray();
return(outputBuffer);
}
/// <summary>
/// Converts the YUV2 image data into a bitmap image.
/// </summary>
/// <param name="yuvPixelArray">The image data in YUV2 format.</param>
/// <param name="width">The width of the image in pixels.</param>
/// <param name="height">The height of the image in pixels.</param>
/// <returns>A BitmapImage instance containing the image.</returns>
public static BitmapImage Yuy2PixelArrayToBitmapImage(byte[] yuvPixelArray, int width, int height)
{
BitmapImage bitmapImage = null;
byte[] rgbPixelArray = ImageProcessingUtils.Yuy2PixelArrayToRgbPixelArray(yuvPixelArray, width, height);
if (rgbPixelArray != null)
{
bitmapImage = new BitmapImage();
InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream();
stream.AsStreamForWrite().Write(rgbPixelArray, 0, rgbPixelArray.Length);
stream.Seek(0);
try
{
bitmapImage.SetSource(stream);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
bitmapImage = null;
}
}
return(bitmapImage);
}
public InMemoryRandomAccessStream GetStream(Image <Rgba32> image)
{
var outputStream = new InMemoryRandomAccessStream();
image.SaveAsJpeg(outputStream.AsStreamForWrite());
outputStream.Seek(0);
return(outputStream);
}
public static async Task <BitmapImage> GetImageAsync(string url)
{
try
{
byte[] data = (await GetBufferAsync(new Uri(url), noCache: true)).ToArray();
var bmp = new BitmapImage();
var stream = new InMemoryRandomAccessStream();
stream.AsStreamForWrite().Write(data, 0, data.Length);
stream.AsStreamForWrite().Flush();
stream.Seek(0);
bmp.SetSource(stream);
return(bmp);
}
catch
{ }
return(null);
}
async void PlayAudio(object sender, GenericEventArgs <Stream> args)
{
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
Stream str = args.EventData;
InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();
await str.CopyToAsync(ras.AsStreamForWrite());
Windows.Media.Playback.BackgroundMediaPlayer.Current.SetStreamSource(ras);
});
}
public static BitmapImage ImageFromBuffer(Byte[] bytes)
{
BitmapImage image = new BitmapImage();
using (InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream())
{
stream.AsStreamForWrite().Write(bytes, 0, bytes.Length);
image.SetSource(stream);
}
return(image);
}
public override void Save(Stream stream, ImageFormat format)
{
Guid encoderId;
if (format.Equals(ImageFormat.Bmp))
{
encoderId = BitmapEncoder.BmpEncoderId;
}
else if (format.Equals(ImageFormat.Gif))
{
encoderId = BitmapEncoder.GifEncoderId;
}
else if (format.Equals(ImageFormat.Jpeg))
{
encoderId = BitmapEncoder.JpegEncoderId;
}
else if (format.Equals(ImageFormat.Png))
{
encoderId = BitmapEncoder.PngEncoderId;
}
else if (format.Equals(ImageFormat.Tiff))
{
encoderId = BitmapEncoder.TiffEncoderId;
}
else
{
throw new ArgumentOutOfRangeException(nameof(format), format, "Unsupported bitmap encoding format");
}
Task.Run(
async() =>
{
using (var localStream = new InMemoryRandomAccessStream())
{
var encoder = await BitmapEncoder.CreateAsync(encoderId, localStream);
var bitmapToEncode = this.Clone(PixelFormat.Format32bppArgb);
var length = bitmapToEncode._height * bitmapToEncode._stride;
var bytes = new byte[length];
Marshal.Copy(bitmapToEncode._scan0, bytes, 0, length);
encoder.SetPixelData(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Straight,
(uint)bitmapToEncode._width,
(uint)bitmapToEncode._height,
96.0,
96.0,
bytes);
await encoder.FlushAsync();
localStream.Seek(0);
await localStream.AsStreamForWrite().CopyToAsync(stream);
}
}).Wait();
}
/// <summary>
/// 流类型的 转换
/// </summary>
/// <param name="stream">Stream 对象</param>
/// <returns>IRandomAccessStream对象</returns>
private static async Task <InMemoryRandomAccessStream> StreamToIRandomAccessStreamAsync(Stream stream)
{
InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();
Stream s = ras.AsStreamForWrite();
await stream.CopyToAsync(s);
//需要提交数据
await s.FlushAsync();
return(ras);
}
public static async Task <WriteableBitmap> GetImage(string url)
{
// string fileName = Http.APIService.FileNameFromURL(url)+".jpg";
string fileName = Http.APIService.FileNameFromURL(url);
WriteableBitmap wb = await GetLocalPictureAsync(fileName);
if (wb == null)
{
try
{
IBuffer buffer = await SendGetRequestAsBytes(url);
if (buffer != null)
{
BitmapImage bi = new BitmapImage();
wb = null;
Stream stream2Write;
using (InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream())
{
stream2Write = stream.AsStreamForWrite();
await stream2Write.WriteAsync(buffer.ToArray(), 0, (int)buffer.Length);
await stream2Write.FlushAsync();
stream.Seek(0);
await bi.SetSourceAsync(stream);
wb = new WriteableBitmap(bi.PixelWidth, bi.PixelHeight);
stream.Seek(0);
await wb.SetSourceAsync(stream);
//保存在本地
await SaveBitmapToFileAsync(wb, fileName);
return(wb);
}
}
else
{
return(null);
}
}
catch
{
return(null);
}
}
else
{
return(wb);
}
}
public static async void AppendFile(StorageFile sf)
{
TagLib.File afi = TagLib.File.Create(new UwpStorageFileAbstraction(sf), ReadStyle.Average);
AudioInfo ai = new AudioInfo()
{
Album = string.IsNullOrEmpty(afi.Tag.Album) ? "未知专辑" : afi.Tag.Album,
Artist = string.IsNullOrEmpty(string.Join('/', afi.Tag.Performers)) ? "未知歌手" : string.Join('/', afi.Tag.Performers),
LengthInMilliseconds = afi.Properties.Duration.TotalMilliseconds,
SongName = string.IsNullOrEmpty(afi.Tag.Title) ? "Untitled" : afi.Tag.Title,
LocalSongFile = sf
};
//记载歌词
try
{
StorageFile lrcfile = await(await sf.GetParentAsync()).GetFileAsync(Path.ChangeExtension(sf.Name, "lrc"));
ai.Lyric = await FileIO.ReadTextAsync(lrcfile);
}
catch (Exception) { }
try
{
BitmapImage img = new BitmapImage();
using (InMemoryRandomAccessStream stream = new InMemoryRandomAccessStream())
{
stream.AsStreamForWrite().Write(afi.Tag.Pictures[0].Data.ToArray(), 0,
afi.Tag.Pictures[0].Data.ToArray().Length);
stream.Seek(0);
await img.SetSourceAsync(stream);
InMemoryRandomAccessStream streamb = new InMemoryRandomAccessStream();
streamb.AsStreamForWrite().Write(afi.Tag.Pictures[0].Data.ToArray(), 0,
afi.Tag.Pictures[0].Data.ToArray().Length);
streamb.Seek(0);
ai.Thumbnail = Windows.Storage.Streams.RandomAccessStreamReference.CreateFromStream(streamb);
}
ai.BitmapImage = img;
}
catch (Exception) { }
HyPlayItem hyPlayItem = new HyPlayItem()
{
AudioInfo = ai,
isOnline = false,
ItemType = HyPlayItemType.Local,
Name = ai.SongName,
Path = sf.Path
};
List.Add(hyPlayItem);
RequestSyncPlayList();
}
//粤语发音
private async void Voice_Click(object sender, RoutedEventArgs e)
{
TextToVoice temp = new TextToVoice();
Stream voice = await temp.ReadText(Input.Text);
InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();
await voice.CopyToAsync(ras.AsStreamForWrite());
await ras.FlushAsync();
ras.Seek(0);
MyMediaPlayer.SetSource(ras, "");
}
/// <summary>
/// Converts the sketch to a bitmap image.
/// </summary>
/// <returns>The `UIImage` representation of the sketch.</returns>
public BitmapImage ToImage()
{
// Convert the image and return
var skPngdata = Draw();
var imageBytes = skPngdata.ToArray();
var image = new BitmapImage();
InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream();
ms.AsStreamForWrite().Write(imageBytes, 0, imageBytes.Length);
ms.Seek(0);
image.SetSource(ms);
return(image);
}
public static ImageSource GetSource(this byte[] imagem)
{
var retorno = new BitmapImage();
using (var stream = new InMemoryRandomAccessStream())
{
var otherStream = stream.AsStreamForWrite();
otherStream.Write(imagem, 0, imagem.Length);
stream.Seek(0);
retorno.SetSource(stream);
}
return(retorno);
}
private async void MyBooksSelectionChanged(object sender, RoutedEventArgs e)
{
var selected = flipMyBooks.SelectedItem as EbookViewModel;
if (selected == null)
{
return;
}
ProgressRingBooks.IsActive = true;
ObservableCollection <ImageSource> pdf = null;
if (gvImages.ItemsSource != null)
{
pdf = gvImages.ItemsSource as ObservableCollection <ImageSource>;
gvImages.SelectedIndex = 0;
pdf.Clear();
}
else
{
pdf = new ObservableCollection <ImageSource>();
gvImages.ItemsSource = pdf;
}
var query = new GetAllEbookPartsQuery();
await query.ExecuteAsync(OAuthSettings.AccessToken, selected.Id, selected.PartCount,
async (sourceStream) =>
{
var stream = new InMemoryRandomAccessStream();
await sourceStream.CopyToAsync(stream.AsStreamForWrite());
var doc = await PdfDocument.LoadFromStreamAsync(stream);
for (uint i = 0; i < doc.PageCount; ++i)
{
var bmpStream = new Windows.Storage.Streams.InMemoryRandomAccessStream();
await doc.GetPage(i).RenderToStreamAsync(bmpStream);
Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
var bmp = new BitmapImage();
bmp.SetSource(bmpStream);
pdf.Add(bmp);
});
}
});
ProgressRingBooks.IsActive = false;
}
public BitmapImage ToImage()
{
// Get image data from sketch
var skPngdata = Untitled1ToData();
// Convert to image and return
var imageBytes = skPngdata.ToArray();
var image = new BitmapImage();
InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream();
ms.AsStreamForWrite().Write(imageBytes, 0, imageBytes.Length);
ms.Seek(0);
image.SetSource(ms);
return(image);
}
public static async Task <BitmapImage> ConvertToImageAsync(byte[] bytes)
{
using (var ras = new InMemoryRandomAccessStream())
{
var memoryStream = new MemoryStream(bytes);
await memoryStream.CopyToAsync(ras.AsStreamForWrite());
var bitmapImage = new BitmapImage();
await bitmapImage.SetSourceAsync(ras);
return(bitmapImage);
}
}
public IRandomAccessStream GetData()
{
var facesImage = faces.Substring(22);
var imageDataRaw = Convert.FromBase64String(facesImage);
var ramStream = new InMemoryRandomAccessStream();
var stream = ramStream.AsStreamForWrite();
stream.Write(imageDataRaw, 0, imageDataRaw.Length);
stream.Flush();
ramStream.Seek(0);
return(ramStream);
}
public static ImageSource ByteToImage(byte[] imageData)
{
BitmapImage biImg = new BitmapImage();
InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream();
ms.AsStreamForWrite().Write(imageData, 0, imageData.Length);
ms.Seek(0);
biImg.SetSource(ms);
ImageSource imgSrc = biImg as ImageSource;
return(imgSrc);
}
public IRandomAccessStream AsStream()
{
var bytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(this));
var stream = new InMemoryRandomAccessStream();
var writeStream = stream.AsStreamForWrite();
using (var writer = new BinaryWriter(writeStream, Encoding.UTF8, true))
{
writer.Write(bytes.Length);
writeStream.Write(bytes, 0, bytes.Length);
}
stream.Seek(0);
return(stream);
}
private static async Task <SoftwareBitmap> GetSoftwareBitmapFromBitmap(Bitmap bitmap)
{
using (MemoryStream ms = new MemoryStream())
{
bitmap.Save(ms, ImageFormat.Bmp);
using (IRandomAccessStream ras = new InMemoryRandomAccessStream())
{
ms.Seek(0, SeekOrigin.Begin);
await ms.CopyToAsync(ras.AsStreamForWrite());
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(ras);
return(await decoder.GetSoftwareBitmapAsync());
}
}
}